Cooling system for refrigerating apparatus



Feb. 21, 192s.Y

'Y T. C. WHITEH'EAD COOLING SSTEM FOR FRIGERATING APPAR Fi led Nov. 19

Patented Feb. 21, 1928.

UNITED STATESy THOMAS c. WHITEHEAD,

PATENT oFFlcE. i

F DETROIT, MICHIGAN.

COOLING SYSTEMYFOR BEFRIGERATIG APPARATUS.

Application led Novgmber 18, 1928. nSerial No. 675,638.

This invention relates to refrigerating apparatus and refers moreparticularly to means for cooling the compressor and radiator thereof tofacilitate the cooling and oondensing of the compressed refrigeratingmedium. f p

An object of the invention is to provide a compact and efficientapparatus in which a device for compressing a refrigerating medium ispreferably located between a radi- .vator for receiving 'the compressedmedium, A and a fan for drawing air through the radiator to cool thesame and the compressor. Another object is to provide an apparatus inwhich. the radiator, rcom ressor and fan are preferably arranged in aignment with a motor upon a suitable support and are preferably enclosedby a li ht and durable hood that co-o crates with t e support to-forml apassage or directing the air drawn through the radiator against thecompressor.

With the above and other objects in view, the invention consists ofcertain novel fea- 'turesoof construction, combination andarlport onwhich the refrigerating apparatus is` mounted. l

Referring now to the drawing in which like charactersof referencedesignate corresponding parts throughout. the several views, the numeral1 designates a stand having a flat top 2 upon which I preferably mount apump 3'for com reslsing a refrigerating medium, a motor 4 aving a shaft5 for drlving the pump, and a radiator 6 havingv a series of coils 7through which the compressed medium passes tor be cooled and condensedbefore entering the usual brine tank (not shown) of a refrigerator. Thecoils 7 of the radiator are preferably arranged in superposed relationwithin a frame 8 and are preferably spaced apart as shown so that airfroml the atmos'llere mayl circulate fag; therebetween. e uppermost coil9 is p erably connected by a suitable tube 10 to the exhaust conduit 11of the pump while the lowermost coil 12 is preferablyy connected to atube 13 that leads to the usual float chamber (not shown) on to of thebrine tank.

To facilitate the cooling and condensing of the compressed mediumpassing through the coils 7 of the radiator, I preferably provide asuitable fan 14 that is mounted on the motor drive shaft-5 to be driventhereby for drawing air through the radiator to cool the same and thepump. For directing the air drawn through the radiator by the fanagainst the compressor, the radiator 6, puxnp 3 and fan 111 arepreferably arranged in alignment on the stand 1 and are enclosed by ahood 15 that fits the radiator casing 8 and that cooperates with the top2 of the stand to form a passage from .the radiator to a. point sllghtlybeyond the fan. The hood 15- may be constructed of any light and durablematerial such as sheet metal and is preferably provided at its loweredges with laterally extending flanges 16 that are detachably secured tothe top 2 of the' stand.

In order that the hood will fit the radiator casin 8 snugly, Ipreferably provide outward y project-in top and side flanges 17 and 18respective y at one end of the hood :isl

coV

for embracing the radiator casing 8. The

top flange 17 is preferably provided at spaced points withelongated onings 19 to receive screws 20 or other suit-a le securing elements forclamping 4the hood to the radiator casing, while between the openings 19is an elongated opening 21 for receiving the tube 13 and the usualtubing extending between the brine tank (not shown) and t-he pump.

As shown in Figure 2, thev hood is prefer' ably provided withy asubstantiallyV-shaped portion 22 at the top that inclines graduallydownwardly from the flange 17 to the rear end of the hood, while uponopposite sides of the V-shaped portion" 22 are transversely curvedsubstantially triangular shapedpor-V tions 23 that connect into therearwardly converging sides 24 of the hood.

From the foregoing descri tion it will bev I 'apparent that I haveprovide a single means for cooling effectively both 'the radiator andthe compressor. tion of'the'refrigerating me ium is assured before itreaches the usual brine tank in a Thus, com lete condensa-vrefrigerator. In addition to cooperating I withlthe top 2 of thestandard to form a passage for directing the air drawn through theradiator toward the compressor the hood 15 also serves as an efficientguard for the fan 14.

While it is believed that from the foregoing description the nature andadvantages of the invention will be readily apparent, I Vdesire to haveit understood that I do not limit myself to what is herein shown anddescribed and that such changes may be resorted to when desired as fallwithin the scope of what is claimed.

What I claim as my invention is 1. In a refrigerating apparatus, the comvbination with a pump for compressing a refrigerating medium, a radiatorfor` condensing the compressed medium, a= motor for driving said pump,`and a fan operatively connected to said motor, of a removable .housing'enclosing said pump and fan prolvided with an opening at one endthereof `of an area corresponding to the area'of the radiator'and havinga substantial arcuateshaped opening at the opposite end thereof ofsubstantially the same area as said fan and motor.

2. In a refrigerating apparatus, the combination with a pump, aradiator, and a motor, of a common portable support thereyfor, avrelatively short driving shaft between said pump andmotor, a fan on said'shaft for effecting 1a circulation of' air through the radiator andaround the pump, and a removable inverted trough-shaped hood coveringsaid radiator, pump and fan and having openings at the o posite endsthereof, the opening at the orward end thereof receiving said radiatorand substantlally corresponding in shape and area to the vertical rearface of said radiator, the

opening at Athe rear end of said hood substantially corresponding inshape and area to the vertical cross sectional area of said motor, theupper wall of said hood extendingdownwardly and vrearwardly from the vopening at the forward end of said hood 'to a point adjacent to theopening at the rear end thereof and the side walls of said hoodconverging from the opening at the forward end thereof to a pointadjacent to the openand inwardly toward said vfor compressing arefrigerant, an air cooledf radiator adjacent said pump and 1n which thecompessed refrigerant is adapted to be condensed, a motor adjacent saidpump for driving the same, a relatively short drive shaft extendingbetween said motor and pump whereby said pump is driven directly by saidmotor, and a hood extending over said radiator and pump, the forward endof said hood having an opening for receiving said radiator andsubstantially corresponding in shape to the vertical rear face of saidradiator and the rear end iof said hood having an opening substantiallycorresponding in shape and area to the vertical cross sectional area ofsaid motor, said openings being in substantial alignment whereby airentering the hood from the radiator will flow against and around thepump and will flow against and around said motor.

4. In a refrigerating apparatus, a.y pump for compressing a refrigerant,an air cooled radiator adjacent said pump and in which the compressedrefrigerant is adapted to be "condensed, a motor adjacent to said pumpfor driving the same, a relatively short drive shaft extending betweensaid motor and 4pump whereby said pump is driven directator pump and fanwhereby air will be drawn by said fan through said radiator and aroundsaid pump toward said motor, the opening at the forward end of said hoodreceiving said radiator and substantially corresponding in shape to thevertical rear face thereof, and the opening at the rear end of said hoodbeing smaller than the opening aforesaid and substantially correspondingin shape and area to the vertical cross sectional area of said motor,the top wall of said hood inclining downwardly from the forward endthereof to the rear end thereof whereby air entering said hood from saidradiator will be drawn by said fan over said pump and will be directeddownwardly towardsaid motor.

-. In testimony `whereof I affix my signature.

THOMAS C. WHITEHEAD.-

